CN110416789A

CN110416789A - Electric connector

Info

Publication number: CN110416789A
Application number: CN201810390178.XA
Authority: CN
Inventors: 许硕修
Original assignee: Fu Ding Precision Components Shenzhen Co Ltd; Hongteng Precision Technology Co Ltd
Current assignee: Fu Ding Precision Components Shenzhen Co Ltd; Hongteng Precision Technology Co Ltd
Priority date: 2018-04-27
Filing date: 2018-04-27
Publication date: 2019-11-05
Anticipated expiration: 2038-04-27
Also published as: TW201946334A; TWI804611B; CN110416789B

Abstract

The invention discloses a kind of electric connectors, for installing to a circuit board to be electrically connected a chip module, the electric connector include with several terminal holes insulating body and several be contained in the conductive terminal in the terminal hole correspondingly, the insulating body has opposite upper surface and lower surface, on the terminal hole runs through described, lower surface, the conductive terminal includes docking arm for contacting with the chip module and for being soldered to the circuit board and presenting lower extended welding arm, the docking arm includes the first main part being immobilizated in the terminal hole and is folded upward at the elastic arm for extending the upper surface from first main part, the docking arm independently of one another and is spaced setting with welding arm, the elastic arm is mobile when chip module pushes and compresses the welding arm downwards, with Formation electrically conducts, and so as to shorten the current path between the chip module and circuit board, improves the high frequency performance of electric connector.

Description

Electric connector

[technical field]

The present invention is in relation to a kind of electric connector more particularly to a kind of for being electrically connected being electrically connected for circuit board and chip module Connect device.

[background technique]

Chinese utility model patent the CN206283019Uth discloses one kind for installing to circuit board to be electrically connected The electric connector of one chip module comprising insulating body and the conductive terminal for being immobilizated in insulating body, the conductive terminal Including be fixed on the holding parts of insulating body, be folded upward at from the holding parts extend the elastic arm of insulating body upper surface with And extend downwardly from the holding parts with the weld part with welding circuit board, when chip module pushes the elastic arm described in lead Electric terminal is formed between the chip module and circuit board and is electrically conducted, due to transmitting high-frequency signal for electric connector at present Rate request constantly promoted, and the elastic arm of such conductive terminal must not be not provided with into because of abutting demand it is curved long-armed Shape, the current path that will lead to terminal is too long, to influence its high frequency characteristics, limits its transmission rate.

Therefore, it is necessary to a kind of new electric connector be designed, to overcome drawbacks described above.

[summary of the invention]

The purpose of the present invention is to provide a kind of electric connectors, can improve the high frequency characteristics of terminal, promote the biography of terminal Defeated speed.

The purpose of the present invention is achieved through the following technical solutions: a kind of electric connector, for install to a circuit board with It is electrically connected a chip module, the electric connector includes insulating body and several a pair with several terminal holes The conductive terminal being contained in answering in the terminal hole, the insulating body have opposite upper surface and lower surface, the end Sub-aperture runs through the upper and lower surfaces, and the conductive terminal includes docking arm for contacting with the chip module and is used for It is soldered to the circuit board and presents lower extended welding arm, the docking arm includes be immobilizated in the terminal hole One main part and the elastic arm for extending the upper surface is folded upward at from first main part, the docking arm and welding Arm is independently of one another and interval is arranged, and the elastic arm is mobile when chip module pushes and compresses the welding arm downwards, with shape At electrically conducting.

Further, the welding arm includes extending and being immobilizated in the second main part in the terminal hole up and down, from institute The second main part is stated to tilt the bending section of extension upwards and extend downward under the insulating body from second main part The plant bulb on surface, the crooked position is in the lower section of elastic arm, and elastic arm moves down and is connected to the bending section, institute It states plant bulb and the circuit board is connected to by a tin ball bonding.

Further, the elastic arm includes that the direction bending from the upper end of first main part towards the welding arm is prolonged The bending part stretched, the rake for tilting extension upwards from the bending part and the arc contact extended from rake bending Portion.

Further, the bending section tilts towards the direction far from the docking arm and extends.

Further, when the elastic arm compresses the bending section, the bending part of the elastic arm due to compression by into The rake of the bending of one step, the elastic arm can be slided along the bending section to provide support force.

Further, the elastic arm compresses the bending section to be formed between the chip module and the circuit board The conductive path of roughly vertical extension.

Further, first main part and second main part are parallel to each other and are separately fixed at corresponding end sub-aperture Opposite inner wall, first main part includes extending to two sides and for being retained to the first hangnail of the terminal hole, Second main part includes the second hangnail for extending to two sides and be used to be retained to the terminal hole.

Further, the terminal hole is equipped with spaced first card slot and the second card slot on a longitudinally, fixed Justice has a transverse direction vertical with the longitudinally, first card slot be distributed in the laterally opposed two sides of the inner wall and Setting is aligned on longitudinally, second card slot is distributed in the laterally opposed two sides of the inner wall and on longitudinally Alignment setting, first hangnail and the first card slot interference engagement the docking arm is assembled to the insulating body, Second hangnail and the second card slot interference engagement are to be assembled to the insulating body for the welding arm.

Further, it is separated with one first gap between each first hangnail and the middle section of first main part, One second gap, first, second gap are separated between each second hangnail and the middle section of second main part It is opening up and along the up and down direction extend.

Further, the upper surface of the insulating body has the boss protruded upward, and the elastic arm stretches out upwards The boss, the crooked position is between the upper surface and the boss.

Compared with prior art, the invention has the following beneficial effects: the conductive terminals of electric connector of the present invention to dock When its elastic arm elasticity be connected to the welding arm being vertically arranged, be conducive to shorten conductive terminal current path, improve terminal High frequency characteristics promotes the transmission speed of terminal.

[Detailed description of the invention]

Fig. 1 is the perspective view of electric connector of the present invention.

Fig. 2 is the perspective view of another angle of electric connector shown in Fig. 1.

Fig. 3 is the optical cable of electric connector shown in Fig. 1.

Fig. 4 is the optical cable of another angle of electric connector shown in Fig. 3.

Fig. 5 is the perspective view of conductive terminal shown in Fig. 3.

Fig. 6 is the cross-sectional view of the line A-A along Fig. 1.

Fig. 7 is electric connector shown in Fig. 1 when conductive terminal is pressurized along the cross-sectional view of line A-A.

Fig. 8 is the cross-sectional view of the line B-B along Fig. 1.

Fig. 9 is the cross-sectional view of the line C-C along Fig. 1.

[main element symbol description]

100 first hangnail 2101 of electric connector

1 first gap 2102 of insulating body

10 elastic arm 211 of terminal hole

First card slot, 101 bending part 2111

Second card slot, 102 rake 2112

11 contact portion 2113 of upper surface

110 welding arm 22 of boss

12 second main part 220 of lower surface

2 second hangnail 2201 of conductive terminal

200 second gap 2202 of chip module

201 bending section 221 of contact chip

Docking arm 21 plants bulb 222

First main part, 210 tin ball 3

The present invention that the following detailed description will be further explained with reference to the above drawings.

[specific embodiment]

Hereinafter, the specific embodiment that Fig. 1 to Fig. 9 will be combined to introduce electric connector of the present invention.

Electric connector 100 of the present invention is for being soldered to a circuit board (not shown) to be electrically connected a chip module 200, such as Shown in Fig. 1 to Fig. 7, the electric connector 100 includes insulating body 1 and several a pair with several terminal holes 10 The conductive terminal 2 being contained in answering in the terminal hole 10.The insulating body 1 has opposite upper surface 11 and lower surface 12, the terminal hole 10 runs through the upper and lower surfaces 11,12.The conductive terminal 2 include for the chip module 200 The docking arm 21 of contact and for being soldered to the circuit board and presenting lower extended welding arm 22, the docking arm 21 Extend including the first main part 210 being immobilizated in the terminal hole 10 and being folded upward at from first main part 210 The elastic arm 211 of the upper surface 11, the docking arm 21 independently of one another and are spaced setting, the elastic arm with welding arm 22 211 is mobile when chip module 200 pushes and compress the welding arm 22 downwards, is electrically conducted with being formed.The welding arm 22 Including extending and being immobilizated in the second main part 220 in the terminal hole 10 up and down, tilted upwards from second main part 220 The bending section 221 of extension and the plant bulb that 1 lower surface 12 of insulating body is extended downward into from second main part 220 222, the bending section 221 is located at the lower section of elastic arm 211, and elastic arm 211 moves down and is connected to the bending section 221, ball placement portion 222 is soldered to the circuit board by a tin ball 3.It can be seen that in the present embodiment from Fig. 6 and Fig. 7, The bending section 221 stretches out the upper surface 11, and ball placement portion 222 stretches out the lower surface 12.

As shown in Fig. 3 to Fig. 7, the elastic arm 211 includes from the upper end of first main part 210 towards the welding arm Bending part 2111 that 22 direction bending extends, from the rake 2112 that inclination extends upwards of the bending part 2111 and from institute State the arc-shaped contact part 2113 that the bending of rake 2112 extends.One side of the chip module 200 towards the electric connector 100 Equipped with the contact chip 201 for being connect with the contact portion 2113, since the elastic arm 211 prolongs in the long arm of above-mentioned bending It stretches, therefore the elastic arm 211 has preferable elasticity, it is described when the docking arm 21 is contacted with the chip module 200 Elastic arm 211 can keep good in electrical contact with the contact chip 201.

Refering to Fig. 5 to Fig. 7, the bending section 221 is tilted towards the direction far from the docking arm 21 to be extended emphasis.When described When elastic arm 211 compresses the bending section 221, the bending part 2111 of the elastic arm 211 is further bent because of compression, institute The rake 2112 for stating elastic arm 211 can be slided along the bending section 221 to provide support force, described curved so as to prevent Excessive deformation due to compression of folding part 2111, avoids conductive terminal 2 from following the string, can extend the service life of conductive terminal 2.In In the present embodiment, the upper surface 11 of the insulating body 1 has the boss 110 protruded upward, the upward projection of the elastic arm 211 The boss 110 out, the bending section 221 is between the upper surface 11 and the boss 110, so that the electric connector 100 come into full contact with the chip module 200 to realize stable electrically conduct.The chip module 200 compresses downwards described After electric connector 100, the elastic arm 211 is in electrical contact with the welding arm 22 because of stress deformation, until the chip dies Group 200 touches the boss 110 of the insulating body 1 and stops deformation, and the boss 110 is set as the elastic arm 211 Deformation provide it is enough allow bit space, but this allows bit space be in the resilient range of the elastic arm 211 again, favorably In further avoiding the elastic arm 211 because being compressed due to excessive deformation.

Emphasis is connected to perpendicular refering to Fig. 7, the conductive terminal 2 of the electric connector 100 its 211 elasticity of elastic arm in docking The plant bulb 222 of the upper end for the welding arm 22 being directly arranged, 22 lower end of welding arm is soldered directly to the circuit board, i.e., described Elastic arm 211 compresses the bending section 221 to form roughly vertical extension between the chip module 200 and the circuit board Conductive path.For it can only transmit the traditional elastic terminal of electric current by curved long arm elastic arm, the present invention Conductive terminal 2 can shorten the current path between the chip module 200 and circuit board to a certain extent, improve conductive The high frequency characteristics of terminal 2 promotes the transmission speed of conductive terminal 2, improves the high frequency performance of electric connector 100.

As shown in figs. 3 to 9, the second master of the first main part 210 of the docking arm 21 and the welding arm 22 Body portion 220 is parallel to each other and extends in vertical up and down, and first main part 210 is separately fixed at the second main part 220 The opposite inner wall (not indicating) of corresponding end sub-aperture 10, first main part 210 include extending to two sides and for holding To the first hangnail 2101 of the terminal hole 10, second main part 220 includes extending to two sides and being used to be retained to described Second hangnail 2201 of terminal hole 10.The terminal hole 10 is equipped with spaced first card slot, 101 He on a longitudinally Second card slot 102, definition have the transverse direction vertical with the longitudinally, and first card slot 101 is distributed in the inner wall The laterally opposed two sides in face and setting is aligned on longitudinally, second card slot 102 is distributed in the transverse direction of the inner wall Opposite sides and the alignment setting on longitudinally, first hangnail 2101 is with 101 interference engagement of the first card slot to incite somebody to action The docking arm 21 is assembled to the insulating body 1, and second hangnail 2201 is with 102 interference engagement of the second card slot to incite somebody to action The welding arm 22 is assembled to the insulating body 1.First main part 210 of conductive terminal 2 of the present invention and the second main body Portion 220 is vertically arranged the width that can shorten the conductive terminal 2 on the longitudinally, is conducive to the small of electric connector 100 Type.

In the present embodiment, the middle section of each first hangnail 2101 and first main part 210 (is not marked Show) between be separated with one first gap 2102, the middle section of each second hangnail 2201 and second main part 220 is (not Mark) between be separated with one second gap 2202, first, second gap 2102,2202 opening up and along the upper and lower To extension, the setting in first, second gap 2102,2202 so that first, second hangnail 2101,2201 in the cross There is certain elasticity on direction, be conducive to the docking arm 21 and the welding arm 22 and be more securely immobilizated in described the One, in the second card slot 101,102.

The docking arm 21 and welding arm 22 of electric connector 100 of the present invention are arranged independently of each other, the only described welding arm 22 are soldered to circuit board by tin ball 3, and it is electric connector 100 and chip module 200 that the effect of the docking arm 21, which is mainly, Docking elasticity is provided so that the contact chip 201 of conductive terminal 2 and chip module 200 is steadily contacted, while the docking arm 21 are also connected to the conductive path for substantially forming roughly vertical extension in conductive terminal 2 in the welding arm 22 extended vertically up and down Diameter can improve the high frequency characteristics of conductive terminal 2, promote the transmission speed of conductive terminal 2.Above-mentioned mutually independent docking arm 21 It will not interact on using function with welding arm 22, design can be made more flexible.

The foregoing is merely some embodiments of the invention, the embodiment being not all of, ordinary skill people Any equivalent variation that member takes technical solution of the present invention by reading description of the invention, is right of the invention It is required that being covered.

Claims

1. a kind of electric connector, for installing to a circuit board to be electrically connected a chip module, the electric connector includes tool Have several terminal holes insulating body and several be contained in the conductive terminal in the terminal hole correspondingly, it is described Insulating body has opposite upper surface and lower surface, and the terminal hole runs through the upper and lower surfaces, and the conductive terminal includes Docking arm for being contacted with the chip module and for being soldered to the circuit board and presenting lower extended welding Arm, the docking arm include that the first main part being immobilizated in the terminal hole and being folded upward at from first main part prolongs Stretch out the elastic arm of the upper surface, it is characterised in that: the docking arm independently of one another and is spaced setting, the bullet with welding arm Property arm it is mobile when chip module pushes and compress the welding arm downwards, electrically conducted with being formed.

2. electric connector as described in claim 1, it is characterised in that: the welding arm is described including extending up and down and being immobilizated in The second main part in terminal hole, the bending section for tilting extension upwards from second main part and from second main part The plant bulb of the insulating body lower surface is extended downward into, the crooked position is in the lower section of elastic arm, and elastic arm is downward It moves and is connected to the bending section, ball placement portion is connected to the circuit board by a tin ball bonding.

3. electric connector as claimed in claim 2, it is characterised in that: the elastic arm includes from the upper of first main part It holds the bending part extended towards the bending of the direction of the welding arm, tilt from the bending part rake of extension upwards and from institute State the arc-shaped contact part that rake bending extends.

4. electric connector as claimed in claim 3, it is characterised in that: incline towards the direction far from the docking arm bending section Tiltedly extend.

5. electric connector as claimed in claim 4, it is characterised in that: described when the elastic arm compresses the bending section The bending part of elastic arm is further bent because of compression, and the rake of the elastic arm can be slided along the bending section to mention For support force.

6. electric connector as claimed in claim 5, it is characterised in that: the elastic arm compresses the bending section in the core The conductive path of roughly vertical extension is formed between piece mould group and the circuit board.

7. electric connector as claimed in claim 3, it is characterised in that: first main part and second main part are mutual Opposite inner wall that is parallel and being separately fixed at corresponding end sub-aperture, first main part include extending to two sides and for solid It holds to the first hangnail of the terminal hole, second main part includes extending to two sides and for being retained to the terminal hole Second hangnail.

8. electric connector as claimed in claim 7, it is characterised in that: the terminal hole is equipped with the row of interval on a longitudinally The first card slot and the second card slot of column, definition have the transverse direction vertical with the longitudinally, and first card slot is distributed in The laterally opposed two sides of the inner wall and setting is aligned on longitudinally, second card slot is distributed in the inner wall Laterally opposed two sides and setting is aligned on longitudinally, first hangnail and the first card slot interference engagement will be with will be described Docking arm is assembled to the insulating body, and second hangnail is with the second card slot interference engagement to assemble the welding arm To the insulating body.

9. electric connector as claimed in claim 8, it is characterised in that: each first hangnail and first main part It is separated with one first gap between middle section, one is separated between each second hangnail and the middle section of second main part Two gaps, first, second gap opening up and extend along the up and down direction.

10. such as the described in any item electric connectors of claim 1-9, it is characterised in that: the upper surface of the insulating body has The boss protruded upward, the elastic arm stretch out the boss upwards, the crooked position in the upper surface with it is described convex Between platform.